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W. FERRIS.

OUTRIGGER OPERATING AND LOCKING DEVICE FOR LOCOMOTIVE CRANES AND THELIKE.

APPLICATION FILED MAR. I. 1917.

' Patented June 24, l9l9.

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OUTRIGGER OPERATING AND LOCKING DEVICE FOR LOCOMOTIVE CRANES AND THELIKE.

APPLICATION FILED MAR. 1. I917- Patented June 24, I919.

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UNITED STATES PATENT OFFICE.

WALTER FERRIS, OF SOUTH MILWAUKEE, WISCONSIN, ASSIGNOR TO BUCYRUSCOMPANY, OF SOUTH MILWAUKEE, WISCONSIN, A CORPORATION OF WIS- CONSIN.

OUTRIGGER OPERATING AND LOCKING DEVICE FOR LOCOMOTIVE-CRANES AND THELIKE.

Specification of Letters Patent. Patented J ne 24 1919 Application filedMarch 1, 1917 Serial No. 151,861.

To all whom it may concern:

Be it known that I, WALTER FnRRrs, a citizen of the United States,residing at South Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented a certain new and useful Improvement inOutrigger Operating and Looking Devices for Locomotive- Cranes and thelike, of which the following is a specification.

My invention relates to locomotive cranes and particularly to theoutrigger operating and locking devices. It will be understood, ofcourse, that the width of the supporting base of the locomotive crane isonly the width between the rails and when the crane has to take up aload from a point at one side of the rails means must be pro vided togive it lateral stability to prevent its overturning. My inventionconcerns itself with an arrangement of outrigger beam whereby the cranemay be supported. My invention deals particularly with the meansfor.carrying and manipulating this outrigger beam and provides atelescopic outrigger beam whereby when power is applied to propel suchbeam upwardly from the side of the. car, it automatically unfolds so asto give the desired maximum width of support. That is to say, I providetwo beams, one within another, each one equal in length to the width ofthe car and pro vide means for feeding one of them forcibly out from theside of the car, and provide automatic means responsive to such movementfor automatically feeding the inner section out beyond the car so as togive an increased radius of support. One object of my invention,therefore, is to provide an outrigger beam which will support the carupon which the crane is mounted. Another object is to providepower meansfor mounting such means. Another object is to provide means forautomatically increasing such beam in length as it is fed out. Anotherobject is to provide means for looking the beam rigidly to the car, soas to give a rigid support after the beam has been fed out. Otherobjects will appear from time to time in the specification.

The invention is illustrated more or less diagrammatically in theaccompanying drawings, wherenr Figure 1 is a plan View of the portion ofthe car showing my device;

Fig. 2 is a side elevation of the parts shown in Fig. 1;

Fig; 3 is an end elevation;

Fig. 4 is a detailed section;

Like parts are indicated by like characters in all the figures.

A is a car body which is adapted to carry a locomotive crane mechanismnot here illustrated since it forms no part of this part of myinvention, although it is illustrated in one of my co-pendingapplications filed of even date herewith. Downwardly depend ing fromthis car body are side frame mempegs A A extending clear across the carA, A are a series of rollers extending across between the lower edges ofthe frame members A A the rollers A A being fixed in position and freeto rotate, rollers A A being rotatably mounted on eccentric shafts A Awhich in turn are rotatably mounted on the frame members A A and areprovided with lever arms A, A notched with hook-like notches A at theouter extremityr B is a hollow beam made up of two I- beams side byside. This beam is adapted to travel upon the rollers A A, beingsupported by them. B is a roller adapted to engage the upper surface ofthe lower flange of the beam B, this roller being supported on a bracketB projecting inwardly from the beam A The purpose of this roller, ofcourse, is to prevent raising of the beam off its roller bearings, andone or more of these rollers. may be provided as the case may. be tolimit any upward movement of the beam. The lower flange of the beam isprovided on either side with teeth forming a ratchet B whereby powerdriven means pivoted on a lever C rotatably mounted on the frame A C isa dog pivoted on this lever having a weighted central arm C. This doghas extensions 0 C. IVhen in the position shown in Fig. 1, the extensionC engages the rack so that the beam may be propelled outwardly byreciprocation of the piston. If, however, this dog is rotated by handuntil the extension C engages the rack, it will propel the beam inwardlywhen the piston is reciprocated, the weighted end being suflicient topermit the piston to pull back and let the dog slide over the gears andsufficient to hold the parts together for the driving stroke. C is alink pivoted on the lever G and having a lug member C adapted normallyto engage the swinging hook C on the, gear frame. C is a handleextending outwardly beyond such lug member whereby the link may beraised and disengaged from the hook at the will of the operator. Whenthis is done the hook can be swung aside and the lug dropped into thehook A on the end of the eccentric lever, then when the cylinder ismanipulated to draw in, the eccentric will be rotated. The roller A willbe lifted, and the beam will be raised to take up all the slack at thecar so that the workmen who are jacking up the outer end of the beamwill have to waste no time in lifting up the beam before a tightconnection is made between it and the car. By this arrangement,therefore, the connection between the beam and the car and between thecar and the ground through the beam is made a rigid one since allback-lash and looseness is taken out.

D is a beam mounted to slide inside the main beam of the same length asthe beam and adapted to travel along the bearings D D extending inwardlyfrom the inside of the main beam and engaging the upper flange of theinner auxiliary beam. D is a chain anchored at one end at the center ofthe beam D. It passes outwardly around pulleys D D on one end of theouter beam B, the two pulleys being required so that the chain will runalong the outside of the beam D. It extends then from the pulley D clearto the other end of the beam B where it passes over pulleys D D extendsthrough a hole D in the web of the beam D to the adjustable hook D onthe beam D whereby the chain may be taken up to avoid slack.Intermediate the two ends of the chain is a block D rigidly mountedthereon. This chain travels through holes in brackets D D extendinginwardly from the side frame A, the holes being so small that the blockD cannot pass through.

Obviously when the outer beam, outrigger or jack supporting member isfed out by the power cylinder, the inner member being contained withinit and carried by it, will travel along with it, the chain passingthrough the perforations in the brackets until the block on the chainengages the bracket. Then the chain can go no farther and the furthermovement of the outer beam will cause the inner one to be drawn out bythe chain. Owing to the mechanical arrangement the inner beam will movetwice as fast as the outer beam so that at the end of the excursion ofthe outer beam, the inner beam will have traveled out to its fullexcursion. Thus by one movement of the operating mechanism the two beamsare thrust out to their full extension so that the maximum lever arm isavailable for resisting any over-turning movement of the car.

It will be understood that my device is one of the parts of thelocomotive frame. It will further be understood that it might be appliedto many different types of locomotive frame. I have illustrated it asapplied to one particular type, but I have only illustrated thosefeatures of that particular type which are necessary in order tounderstand the operation and device, and I wish therefore that mydrawings be regarded in a very real sense as diagrammatic, and as onlyillustrating one exemplification of my invention, which invention mightbe used for other purposes in other connections, or might be veryconsiderably modified without departing from the spirit of my invention.

I claim:

1. In a crane, an extensible jack arm supported by a roller and meansfor raising the axis of said roller to bring the upper surface of thejack arm against the frame of the crane to lock it in position.

2. In a crane, a jack arm operating mechanism comprising a rollersupporting the jack arm, a shaft upon which said roller rotates, aneccentric bearing for said shaft and means for revolving the shaft andthereby raising the roller.

3. In a crane, an extensible jack arm, means loosely supporting saidjack arm and means whereby the jack arm may be raised after it has beenextended, to simultaneously take up the clearance in the supportingmeans and lock the jack arm in position.

at. In a crane, a supporting jack arm, power operated means forextending said jack arm and power operated means for raising the jackarm and locking it against the car body after it is extended.

5. A crane outrigger mechanism comprising a car body, a main outrigger,an auxiliary telescoping outrigger carried by the main outrigger primarymechanism for extending the main outrigger through a prede- 125 termineddistance carrying the auxiliary outrigger with it through the samedistance and secondary means reacting against the car body the mainoutrigger and the auxiliary outrigger whereby after the predeter- 180mined distance is traversed the power derived from the primary mechanismacts to extend the auxiliary outrigger beyond the end of the mainoutrigger.

6. A crane outrigger mechanism comprising a car body, a main outrigger,an auxiliary telescoping outrigger carried by the main outrigger,primary mechanism react ing against the car body and main outrigger forextending the main outrigger through a predeteri'i'iined distancecarrying the auxiliary outrigger with it through the same distance andsecondary flexible means reacting against the car body the mainoutrigger and the auxiliary outrigger whereby after the predetermineddistance is traversed the power derived from the primary mechanism actsto extend the auxiliary outrigger beyond the end of the main outrigger,the secondary means consisting of a chain with an enlarged link portiondisposed to engage a projecting member of the main outrigger when themain outrigger is fully extended, to furnish leverage for the extensionof the auxiliary outrigger.

7. A crane outrigger mechanism comprising a car body, a main outrigger,an auxiliary telescoping outrigger carried by the main outrigger, meansfor extending the main outrigger through a predetermined distance, aflexible connection between the car body, the main outrigger and theauxiliary outrigger and means for attaching said connection to theauxiliary outrigger, said means operative only after a predeterminedmovement of the outrigger to extend the auxiliary outrigger beyond theend of the main outrigger.

S. A crane outrigger mechanism comprising a car body, a main outrigger,an auxiliary telescoping outrigger carried by the main outrigger, meansfor extending the main outrigger through a predetermined distance and aflexible connection between the car body, the main outrigger and theauxiliary outrigger, a stop on said flexible connection and a stop onthe main outrigger adapted to engage the stop on the flexible connectionafter a predetermined movement of the main outrigger.

9. A crane outrigger mechanism comprising a car body, a main outrigger,an auxiliary telescoping outrigger carried by the main outrigger, meansfor extending the main outrigger through a predetermined distance, meansfor extending the secondary outrigger after the main outrigger reachesits full extension, said means comprising a flexible connection, a stopthereon, and a stop on the main outrigger, said stops adapted to contactand to form an operating connection.

In testimony whereof I affix my signature in the presence of twowitnesses this 28th day of February, 1917.

WALTER FERRIS. Witnesses:

MINNIE M. LINDENAU, RUTH E. CARLSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

